![Palmer amaranth can reach heights of up to 7-10 feet. UGA Extension weed specialist Eric Prostko encourages farmers to continue to control Palmer amaranth even after their corn is harvested.](https://secure.caes.uga.edu/news/multimedia/images/1295/Palmer-low-res.jpg)
Palmer Amaranth Management
Georgia farmers scored what many view as a significant victory when the U.S. Environmental Protection Agency extended the registration of the controversial weed killer dicamba for two years. The herbicide can be used for over-the-top weed control in cotton and soybean fields, according to Stanley Culpepper, University of Georgia Cooperative Extension weed specialist.